Wikidata facts
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- State Department code book 1899, code page 187.agr.jpg
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Zimmermann telegram
Entity
cipher
Entity
World War II
Concept
Joseph Stalin
Person
Harry S. Truman
Entity
communication
Entity
September 11 attacks
Concept
International Standard Book Number
Entity
nuclear weapon
Entity
BBC
Concept
David
Entity
Spanish Civil War
Entity
Wayback Machine
Entity
Henry Wadsworth Longfellow
Entity
cryptography
Entity
bit
Entity
Robert A. Heinlein
Entity
Attack on Pearl Harbor
Concept
National Security Agency
Entity
Potsdam Conference
Entity